From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
update_scanline_offset() in intel_sanitize_crtc() was supposed to
be called only for active crtcs. But due to some underrun patches it
now gets updated for all crtcs on gmch platforms.
Move the update_scanline_offset() to the very beginning of
intel_sanitize_crtc() where we update the vblank state. This seems like
a better place anyway since the scanline offset ought to be up to date
before we might need to consult it. So before any vblanky stuff happens.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index c00bcd0..9403b2f 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12916,9 +12916,10 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc)
I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
/* restore vblank interrupts to correct state */
- if (crtc->active)
+ if (crtc->active) {
+ update_scanline_offset(crtc);
drm_vblank_on(dev, crtc->pipe);
- else {
+ } else {
/* avoid random jumps in seq/ts */
dev->vblank[crtc->pipe].last = 0;
drm_vblank_off(dev, crtc->pipe);
@@ -13020,8 +13021,6 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc)
*/
crtc->cpu_fifo_underrun_disabled = true;
crtc->pch_fifo_underrun_disabled = true;
-
- update_scanline_offset(crtc);
}
}
--
1.8.5.5
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